VintageKustom.com
VintageKustom.com is your source for literature and information on the tuck-and-roll vintage Kustom amps from the 60's and 70's, as well as their related products such as guitars and organs . We provide a webboard for help with kustom gear history, technical information and repairs as well as discussions with other collectors.
Home » VintageKustom.com » Repairing Kustom Amps » pot meters (Kustom 100-2)
Show: Today's Messages :: Polls :: Message Navigator
Switch to threaded view of this topic Create a new topic Submit Reply
pot meters [message #29281] Thu, 27 June 2024 17:03 Go to next message
Benno is currently offline  Benno
Messages: 3
Registered: June 2024
Junior Member
Hello all,
I need to replace the 15 kOhm volume pot on a KUSTOM 100-2, but it is very difficult to find. Most of all because of the 5/8"threaded bushing.
Any suggestions?
Thanks,
Ben

Report message to a moderator

Re: pot meters [message #29282 is a reply to message #29281] Thu, 27 June 2024 18:07 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4778
Registered: June 2004
Location: NY
Senior Member
Is the pot physically ok, just very scratchy and intermittent even after flushing it out well with cleaner?
Do you have the pot removed from the board?

Report message to a moderator

Re: pot meters [message #29283 is a reply to message #29281] Sun, 30 June 2024 08:35 Go to previous messageGo to next message
Benno is currently offline  Benno
Messages: 3
Registered: June 2024
Junior Member
I removed the potmeter and opened it. One slider runs fine between o and 15k. The other slider sticks to 15 k till half way. The  carbon track is damaged.
Again, where to find a 15k potmeter with a long bushing?

Report message to a moderator

Re: pot meters [message #29284 is a reply to message #29281] Sun, 30 June 2024 10:26 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4778
Registered: June 2004
Location: NY
Senior Member
They are near impossible to find these days.

Sometimes if you’re very careful you can bend the wiper over just enough to ride on untouched resistance trace.

I have a 10K out of a K300 pA I can send you?

Report message to a moderator

Re: pot meters [message #29285 is a reply to message #29284] Sun, 07 July 2024 16:31 Go to previous messageGo to next message
Benno is currently offline  Benno
Messages: 3
Registered: June 2024
Junior Member
Thank you.
I found a new 3/4" bushing 25kOhm potmeter.
Simulating with TINA, we saw that R102 had to go from 10 kOhm to 15 kOhm to keep the feedback.
Result is just perfect.

Report message to a moderator

Re: pot meters [message #29286 is a reply to message #29281] Mon, 08 July 2024 06:03 Go to previous message
stevem is currently offline  stevem
Messages: 4778
Registered: June 2004
Location: NY
Senior Member
Good and nice ofyou to pass along this info!👍

Report message to a moderator

  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic: Kustom Studio 4V - Schematic needed
Next Topic: Need schematic
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ]

Current Time: Wed Dec 25 22:34:57 EST 2024
.:: Contact :: Home ::.

Powered by: FUDforum 3.1.3.
Copyright ©2001-2023 FUDforum Bulletin Board Software